Sound clips for an application?

I'm building a (closed source) chat client style application and I'm having a hard time finding sound clips to use for various notifications. Basic chimes like when someone comes online or when a message is received.

ht开发者_如何学Pythontp://freesound.org obviously has lots of sound clips, but I've been browsing through it for a least 45 minutes and and I don't think I'm going to find what I'm looking for (but I'm gonna keep browsing).

Is there anything like a famfamfam silk icon set of sound?

Are there professionally designed ones that you've used in the past that can be licensed for a reasonable price?

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Try http://www.audiosoundclips.com. It's new but the effects are quality.

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This maybe useful.